Question

5,4*(40,4-2,4x)+42,84=228,6

Answer 1

5,4*(40,4-2,4х)+42,84=228,6
218,16-12,96х+42,84=228,6
261-12,96х=228,6
-12,96х=228,6-261
-12,96х=-32,4
х=2,5

Answer 2

Пошаговое объяснение:

5,4×(40,4-2,4х)+42,84=228,6

218,16-12,96х+42,84=228,6

- 12,96х+261=228,6

-12,96х=228,6-261

-12,96х= - 32,4

Х= - 32,4:(-12,96)

Х=2,5

Answer 3

To solve the equation 5.4(40.4 - 2.4x) + 42.84 = 228.6, follow these steps:

1. Distribute the 5.4 on the left side of the equation:

   5.4 * 40.4 - 5.4 * 2.4x + 42.84 = 228.6

2. Multiply the constants:

   217.36 - 12.96x + 42.84 = 228.6

3. Next, isolate the variable term (-12.96x) by moving the constants to the other side of the equation:

   217.36 + 42.84 - 228.6 = 12.96x

4. Combine the constants:

   260.2 - 228.6 = 12.96x

5. Subtract to simplify:

   31.6 = 12.96x

6. Finally, divide both sides by 12.96 to solve for x:

   x = 31.6 / 12.96 ≈ 2.439

So, the solution to the equation is approximately x ≈ 2.439.